My favorite Bant card that didn't make the list is Arcades, the StrategistArcades, the Strategist, because he is a wonderful buildaround for one of the most interesting themes in the format: toughness matters
Tidus, Zanarkand Fayth (Thrasios, Triton Hero) You'd be hard-pressed to see Thrasios played anywhere other than low-powered Merfolk Commander decks, but the Final Fantasy X cover art is the big selling point here
That means you can get one in each ink color, and mix-and-match them for your two-ink decks
Feather, The Redeemed A Master Of Combat Trickery Combat tricks, or instants and sorceries that grant stat and ability boosts to your creatures for a single turn, are a staple element of Magic that rarely make it into Commander decks
Ultimately, Ive found steel to be fairly metagame dependent working well as a supporting ink, but tends to fall flat in the starring role